include/wx/univ/stdrend.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/univ/stdrend.h
   3 // Purpose:     wxStdRenderer class declaration
   4 // Author:      Vadim Zeitlin
   5 // Created:     2006-09-18
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_UNIV_STDREND_H_
  12 #define _WX_UNIV_STDREND_H_
  13
  14 #include "wx/univ/renderer.h"
  15 #include "wx/pen.h"
  16
  17 class WXDLLEXPORT wxColourScheme;
  18
  19 // ----------------------------------------------------------------------------
  20 // wxStdRenderer: implements as much of wxRenderer API as possible generically
  21 // ----------------------------------------------------------------------------
  22
  23 class wxStdRenderer : public wxRenderer
  24 {
  25 public:
  26     // the renderer will use the given scheme, whose lifetime must be at least
  27     // as long as of this object itself, to choose the colours for drawing
  28     wxStdRenderer(const wxColourScheme *scheme);
  29
  30     virtual void DrawBackground(wxDC& dc,
  31                                 const wxColour& col,
  32                                 const wxRect& rect,
  33                                 int flags = 0,
  34                                 wxWindow *window = NULL);
  35     virtual void DrawButtonSurface(wxDC& dc,
  36                                    const wxColour& col,
  37                                    const wxRect& rect,
  38                                    int flags);
  39
  40
  41     virtual void DrawFocusRect(wxDC& dc, const wxRect& rect);
  42     virtual void DrawLabel(wxDC& dc,
  43                            const wxString& label,
  44                            const wxRect& rect,
  45                            int flags = 0,
  46                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
  47                            int indexAccel = -1,
  48                            wxRect *rectBounds = NULL);
  49     virtual void DrawButtonLabel(wxDC& dc,
  50                                  const wxString& label,
  51                                  const wxBitmap& image,
  52                                  const wxRect& rect,
  53                                  int flags = 0,
  54                                  int alignment = wxALIGN_LEFT | wxALIGN_TOP,
  55                                  int indexAccel = -1,
  56                                  wxRect *rectBounds = NULL);
  57
  58
  59     virtual void DrawBorder(wxDC& dc,
  60                             wxBorder border,
  61                             const wxRect& rect,
  62                             int flags = 0,
  63                             wxRect *rectIn = NULL);
  64     virtual void DrawTextBorder(wxDC& dc,
  65                                 wxBorder border,
  66                                 const wxRect& rect,
  67                                 int flags = 0,
  68                                 wxRect *rectIn = NULL);
  69
  70     virtual void DrawHorizontalLine(wxDC& dc,
  71                                     wxCoord y, wxCoord x1, wxCoord x2);
  72     virtual void DrawVerticalLine(wxDC& dc,
  73                                   wxCoord x, wxCoord y1, wxCoord y2);
  74     virtual void DrawFrame(wxDC& dc,
  75                            const wxString& label,
  76                            const wxRect& rect,
  77                            int flags = 0,
  78                            int alignment = wxALIGN_LEFT,
  79                            int indexAccel = -1);
  80
  81
  82     virtual void DrawItem(wxDC& dc,
  83                           const wxString& label,
  84                           const wxRect& rect,
  85                           int flags = 0);
  86     virtual void DrawCheckItem(wxDC& dc,
  87                                const wxString& label,
  88                                const wxBitmap& bitmap,
  89                                const wxRect& rect,
  90                                int flags = 0);
  91
  92     virtual void DrawCheckButton(wxDC& dc,
  93                                  const wxString& label,
  94                                  const wxBitmap& bitmap,
  95                                  const wxRect& rect,
  96                                  int flags = 0,
  97                                  wxAlignment align = wxALIGN_LEFT,
  98                                  int indexAccel = -1);
  99     virtual void DrawRadioButton(wxDC& dc,
 100                                  const wxString& label,
 101                                  const wxBitmap& bitmap,
 102                                  const wxRect& rect,
 103                                  int flags = 0,
 104                                  wxAlignment align = wxALIGN_LEFT,
 105                                  int indexAccel = -1);
 106
 107 #if wxUSE_TEXTCTRL
 108     virtual void DrawTextLine(wxDC& dc,
 109                               const wxString& text,
 110                               const wxRect& rect,
 111                               int selStart = -1,
 112                               int selEnd = -1,
 113                               int flags = 0);
 114
 115     virtual void DrawLineWrapMark(wxDC& dc, const wxRect& rect);
 116
 117     virtual wxRect GetTextTotalArea(const wxTextCtrl *text,
 118                                     const wxRect& rect) const;
 119     virtual wxRect GetTextClientArea(const wxTextCtrl *text,
 120                                      const wxRect& rect,
 121                                      wxCoord *extraSpaceBeyond) const;
 122 #endif // wxUSE_TEXTCTRL
 123
 124     virtual wxRect GetBorderDimensions(wxBorder border) const;
 125
 126     virtual bool AreScrollbarsInsideBorder() const;
 127
 128 #if wxUSE_SCROLLBAR
 129     virtual wxRect GetScrollbarRect(const wxScrollBar *scrollbar,
 130                                     wxScrollBar::Element elem,
 131                                     int thumbPos = -1) const;
 132
 133     virtual wxCoord GetScrollbarSize(const wxScrollBar *scrollbar);
 134
 135     virtual wxHitTest HitTestScrollbar(const wxScrollBar *scrollbar,
 136                                        const wxPoint& pt) const;
 137
 138     virtual wxCoord ScrollbarToPixel(const wxScrollBar *scrollbar,
 139                                      int thumbPos = -1);
 140     virtual int PixelToScrollbar(const wxScrollBar *scrollbar, wxCoord coord);
 141 #endif // wxUSE_SCROLLBAR
 142
 143 protected:
 144     // various constants
 145     enum IndicatorType
 146     {
 147         IndicatorType_Check,
 148         IndicatorType_Radio,
 149         IndicatorType_MaxCtrl,
 150         IndicatorType_Menu = IndicatorType_MaxCtrl,
 151         IndicatorType_Max
 152     };
 153
 154     enum IndicatorState
 155     {
 156         IndicatorState_Normal,
 157         IndicatorState_Pressed, // this one is for check/radioboxes
 158         IndicatorState_Disabled,
 159         IndicatorState_MaxCtrl,
 160
 161         // the rest of the states are valid for menu items only
 162         IndicatorState_Selected = IndicatorState_Pressed,
 163         IndicatorState_SelectedDisabled = IndicatorState_MaxCtrl,
 164         IndicatorState_MaxMenu
 165     };
 166
 167     enum IndicatorStatus
 168     {
 169         IndicatorStatus_Checked,
 170         IndicatorStatus_Unchecked,
 171         IndicatorStatus_Undetermined,
 172         IndicatorStatus_Max
 173     };
 174
 175     // translate the appropriate bits in flags to the above enum elements
 176     static void GetIndicatorsFromFlags(int flags,
 177                                        IndicatorState& state,
 178                                        IndicatorStatus& status);
 179
 180     // fill the rectangle with a brush of given colour (must be valid)
 181     void DrawSolidRect(wxDC& dc, const wxColour& col, const wxRect& rect);
 182
 183
 184     // all the functions in this section adjust the rect parameter to
 185     // correspond to the interiour of the drawn area
 186
 187         // draw complete rectangle
 188     void DrawRect(wxDC& dc, wxRect *rect, const wxPen& pen);
 189
 190         // draw the rectange using the first pen for the left and top sides
 191         // and the second one for the bottom and right ones
 192     void DrawShadedRect(wxDC& dc, wxRect *rect,
 193                         const wxPen& pen1, const wxPen& pen2);
 194
 195         // border drawing routines, may be overridden in the derived class
 196     virtual void DrawRaisedBorder(wxDC& dc, wxRect *rect);
 197     virtual void DrawSunkenBorder(wxDC& dc, wxRect *rect);
 198     virtual void DrawAntiSunkenBorder(wxDC& dc, wxRect *rect);
 199     virtual void DrawFrameBorder(wxDC& dc, wxRect *rect);
 200
 201
 202     // draw the frame with non-empty label inside the given rectText
 203     virtual void DrawFrameWithLabel(wxDC& dc,
 204                                     const wxString& label,
 205                                     const wxRect& rectFrame,
 206                                     const wxRect& rectText,
 207                                     int flags,
 208                                     int alignment,
 209                                     int indexAccel);
 210
 211     // draw the (static box) frame without the part corresponding to rectLabel
 212     void DrawFrameWithoutLabel(wxDC& dc,
 213                                const wxRect& rectFrame,
 214                                const wxRect& rectLabel);
 215
 216
 217     // draw the bitmap for a check item (which is by default the same as check
 218     // box one but may be different)
 219     virtual void DrawCheckItemBitmap(wxDC& dc,
 220                                      const wxBitmap& bitmap,
 221                                      const wxRect& rect,
 222                                      int flags);
 223
 224     // common routine for drawing check and radio buttons
 225     void DrawCheckOrRadioButton(wxDC& dc,
 226                                 const wxString& label,
 227                                 const wxBitmap& bitmap,
 228                                 const wxRect& rect,
 229                                 int flags,
 230                                 wxAlignment align,
 231                                 int indexAccel);
 232
 233     // return the check/radio bitmap for the given flags
 234     virtual wxBitmap GetRadioBitmap(int flags) = 0;
 235     virtual wxBitmap GetCheckBitmap(int flags) = 0;
 236
 237 #if wxUSE_TEXTCTRL
 238     // return the width of the border around the text area in the text control
 239     virtual int GetTextBorderWidth(const wxTextCtrl *text) const;
 240 #endif // wxUSE_TEXTCTRL
 241
 242     // return the starting and ending positions, in pixels, of the thumb of a
 243     // scrollbar with the given logical position, thumb size and range and the
 244     // given physical length
 245     static void GetScrollBarThumbSize(wxCoord length,
 246                                       int thumbPos,
 247                                       int thumbSize,
 248                                       int range,
 249                                       wxCoord *thumbStart,
 250                                       wxCoord *thumbEnd);
 251
 252     // GDI objects we often use
 253     wxPen m_penBlack,
 254           m_penDarkGrey,
 255           m_penLightGrey,
 256           m_penHighlight;
 257
 258     // the colours we use, they never change currently so we don't have to ever
 259     // update m_penXXX objects above
 260     const wxColourScheme * const m_scheme;
 261
 262     DECLARE_NO_COPY_CLASS(wxStdRenderer)
 263 };
 264
 265 #endif // _WX_UNIV_STDREND_H_